New York, 8 April 1981 - Press release and communication A press release from New York's Museum of Modern Art concerning a Spanish delegation's request to send Guernica to Spain
New York, 10 July 1939 - Institutional correspondence Blanche Mahler's letter to Grace L. McCann Morley
2 May 1939 - Internal institutional documents A draft text for the invitation to the exhibition Picasso's Guernica at the Valentine Gallery, New York